V30: Fix promotion README posture rewrite

Broaden the runtime canon promotion README rewrite so promoted V30 demonstration docs move from draft-target wording to V30 active/V31 draft posture before drift validation. Add fixture coverage for the V30 Protocol/BTD hardening README shape.\n\nProof: npm --prefix protocol-demonstration run test:v22-canon-drift; git diff --check; git diff --cached --check.

Author: geraldarthurdavis

protocol-demonstration/test/v22-canon-drift.test.js

@@ -102,30 +102,31 @@ test('runtime promotion preparation rewrites current inline demonstration README
     path.join(fixtureRoot, 'protocol-demonstration', 'src', 'canon-posture.js'),
     [
       "// @ts-check",
-      "export const ACTIVE_CANON_VERSION = 'V27';",
-      "export const DRAFT_TARGET_VERSION = 'V28';"
+      "export const ACTIVE_CANON_VERSION = 'V29';",
+      "export const DRAFT_TARGET_VERSION = 'V30';"
     ].join('\n'),
     'utf8'
   );
   await fs.writeFile(
     path.join(fixtureRoot, 'protocol-demonstration', 'README.md'),
     [
-      '# Bitcode Protocol Demonstration - V27 canonical deterministic local prototype',
+      '# Bitcode Protocol Demonstration - V29 canonical deterministic local prototype',
       '',
       '`BITCODE_SPEC.txt` is the canonical pointer for active-system work. It currently',
-      'resolves to `V27`; V28 is the active draft target for MVP QA.',
-      '`BITCODE_SPEC.txt -> V27`. This demo is governed by the active V27 canonical',
-      'spec and `BITCODE_SPEC_V27_PROVEN.md` as the current generated appendix.'
+      'resolves to `V29`; V30 is the active draft target for Protocol/BTD hardening.',
+      '`BITCODE_SPEC.txt -> V29`. This demo is governed by the active V29 canonical',
+      'spec and `BITCODE_SPEC_V29_PROVEN.md` as the current generated appendix while V30 draft',
+      'work proceeds outside the demonstration runtime boundary.'
     ].join('\n'),
     'utf8'
   );
 
   execFileSync(process.execPath, [
     prepareRuntimeScriptPath,
     '--version',
-    'V28',
+    'V30',
     '--next-draft',
-    'V29',
+    'V31',
     '--repo-root',
     fixtureRoot
   ], {
@@ -135,12 +136,13 @@ test('runtime promotion preparation rewrites current inline demonstration README
 
   const rewrittenReadme = await fs.readFile(path.join(fixtureRoot, 'protocol-demonstration', 'README.md'), 'utf8');
 
-  assert.match(rewrittenReadme, /# Bitcode Protocol Demonstration - V28 canonical deterministic local prototype/);
-  assert.match(rewrittenReadme, /resolves to `V28`; V29 is the next draft target after this promotion\./);
-  assert.match(rewrittenReadme, /BITCODE_SPEC\.txt -> V28/);
-  assert.match(rewrittenReadme, /active V28 canonical\s+spec/);
-  assert.match(rewrittenReadme, /BITCODE_SPEC_V28_PROVEN\.md/);
-  assert.doesNotMatch(rewrittenReadme, /active draft target for MVP QA/);
+  assert.match(rewrittenReadme, /# Bitcode Protocol Demonstration - V30 canonical deterministic local prototype/);
+  assert.match(rewrittenReadme, /resolves to `V30`; V31 is the next draft target after this promotion\./);
+  assert.match(rewrittenReadme, /BITCODE_SPEC\.txt -> V30/);
+  assert.match(rewrittenReadme, /active V30 canonical\s+spec/);
+  assert.match(rewrittenReadme, /BITCODE_SPEC_V30_PROVEN\.md/);
+  assert.doesNotMatch(rewrittenReadme, /active draft target/);
+  assert.doesNotMatch(rewrittenReadme, /draft work proceeds outside/);
 });
 
 test('V23 spec-family promotion preparation rewrites hand-authored status truth', async () => {

scripts/prepare-bitcode-runtime-canon-promotion.mjs

@@ -107,11 +107,11 @@ function rewriteReadme(content, version, nextDraft) {
     `- current generated appendix: \`${promotedProvenPath(version)}\``
   );
   rewritten = rewritten.replace(
-    /resolves to `V\d+`; V\d+ is the active draft target for MVP QA\./m,
+    /resolves to `V\d+`; V\d+ is the active draft target[^.]*\./m,
     `resolves to \`${version}\`; ${nextDraft} is the next draft target after this promotion.`
   );
   rewritten = rewritten.replace(
-    /`BITCODE_SPEC\.txt -> V\d+`\.\s+This demo is governed by the active V\d+ canonical\s+spec and `(?:BITCODE_SPEC_V\d+_PROVEN\.md|_legacy\/ENGI_SPEC_V\d+_PROVEN\.md)` as the current generated appendix\./m,
+    /`BITCODE_SPEC\.txt -> V\d+`\.\s+This demo is governed by the active V\d+ canonical\s+spec and `(?:BITCODE_SPEC_V\d+_PROVEN\.md|_legacy\/ENGI_SPEC_V\d+_PROVEN\.md)` as the current generated appendix(?:\s+while V\d+ draft\s+work proceeds outside the demonstration runtime boundary)?\./m,
     `\`BITCODE_SPEC.txt -> ${version}\`. This demo is governed by the active ${version} canonical\nspec and \`${promotedProvenPath(version)}\` as the current generated appendix.`
   );
   rewritten = rewritten.replace(